US7800759B2 - Eye length measurement apparatus - Google Patents
Eye length measurement apparatus Download PDFInfo
- Publication number
- US7800759B2 US7800759B2 US11/954,146 US95414607A US7800759B2 US 7800759 B2 US7800759 B2 US 7800759B2 US 95414607 A US95414607 A US 95414607A US 7800759 B2 US7800759 B2 US 7800759B2
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- US
- United States
- Prior art keywords
- light
- interference peak
- mirror
- corneal
- delay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/1005—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for measuring distances inside the eye, e.g. thickness of the cornea
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/102—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for optical coherence tomography [OCT]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Measuring instruments characterised by the use of optical techniques
- G01B9/02—Interferometers
- G01B9/0209—Low-coherence interferometers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B2290/00—Aspects of interferometers not specifically covered by any group under G01B9/02
- G01B2290/35—Mechanical variable delay line
Abstract
Description
In some embodiments, the absolute value of said calculated value is less than 10% and some embodiments it is less than 5%.
Claims (19)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/954,146 US7800759B2 (en) | 2007-12-11 | 2007-12-11 | Eye length measurement apparatus |
EP08859546.7A EP2223039B1 (en) | 2007-12-11 | 2008-11-13 | Eye length measurement apparatus |
PCT/US2008/083349 WO2009075993A2 (en) | 2007-12-11 | 2008-11-13 | Eye length measurement apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/954,146 US7800759B2 (en) | 2007-12-11 | 2007-12-11 | Eye length measurement apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
US20090147266A1 US20090147266A1 (en) | 2009-06-11 |
US7800759B2 true US7800759B2 (en) | 2010-09-21 |
Family
ID=40721308
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/954,146 Active 2028-03-23 US7800759B2 (en) | 2007-12-11 | 2007-12-11 | Eye length measurement apparatus |
Country Status (3)
Country | Link |
---|---|
US (1) | US7800759B2 (en) |
EP (1) | EP2223039B1 (en) |
WO (1) | WO2009075993A2 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100182610A1 (en) * | 2009-01-22 | 2010-07-22 | Canon Kabushiki Kaisha | Optical tomographic imaging apparatus |
US20140160431A1 (en) * | 2009-10-23 | 2014-06-12 | Bioptigen, Inc. | Systems for Comprehensive Fourier Domain Optical Coherence Tomography (FDOCT) and Related Methods |
US20140347630A1 (en) * | 2012-01-24 | 2014-11-27 | Visia Imaging S.R.L. | Fast measurement of ocular axial length |
US20150272433A1 (en) * | 2014-04-01 | 2015-10-01 | Crystalvue Medical Corporation | Optical measuring device and method |
CN104970765A (en) * | 2014-04-01 | 2015-10-14 | 明达医学科技股份有限公司 | Optical measurement equipment and method |
US9163930B2 (en) | 2009-09-22 | 2015-10-20 | Bioptigen, Inc. | Systems for extended depth frequency domain optical coherence tomography (FDOCT) and related methods |
US10743758B2 (en) | 2015-03-25 | 2020-08-18 | Amo Development, Llc | Multiple depth optical coherence tomography system and method and laser eye surgery system incorporating the same |
EP3801195A4 (en) * | 2018-06-05 | 2021-08-11 | Cylite Pty Ltd | Apparatus and method for in-vivo measurement of corneal biomechanical response |
US11166630B2 (en) | 2017-01-28 | 2021-11-09 | Cylite Pty Ltd | Optical coherence metrology and tomography with improved registration |
US11963722B2 (en) | 2021-04-13 | 2024-04-23 | Amo Development, Llc | Methods and systems for determining change in eye position between successive eye measurements |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2485009A1 (en) * | 2011-02-04 | 2012-08-08 | Haag-Streit Ag | Frequency domain OCT |
TWI575630B (en) * | 2011-06-10 | 2017-03-21 | 應用材料股份有限公司 | Pulse circulator |
CN102727172B (en) * | 2012-06-19 | 2014-08-13 | 天津市索维电子技术有限公司 | System and method for measuring eyeball parameters by using weak coherent technology |
EP3339822A1 (en) * | 2016-12-22 | 2018-06-27 | Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO | Interferometer system and use thereof |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5347327A (en) | 1991-04-15 | 1994-09-13 | Kabushiki Kaisha Topcon | Process and apparatus for measuring axial eye length |
US5673096A (en) | 1994-12-23 | 1997-09-30 | Carl Zeiss Jena Gmbh | Interferometric arrangement with diffractive optical element for measuring intraocular distances |
US5975699A (en) | 1998-04-29 | 1999-11-02 | Carl Zeiss, Inc. | Method and apparatus for simultaneously measuring the length and refractive error of an eye |
US6053613A (en) * | 1998-05-15 | 2000-04-25 | Carl Zeiss, Inc. | Optical coherence tomography with new interferometer |
US6144456A (en) | 1995-05-04 | 2000-11-07 | Haag-Streit Ag | Apparatus having a multiple angle transparent rotating element for measuring the thickness of transparent objects |
US6243191B1 (en) | 1998-02-03 | 2001-06-05 | Carl Zeiss Jena Gmbh | Optical path length modulator |
US6779891B1 (en) | 1998-12-10 | 2004-08-24 | Carl Zeiss Jena Gmbh | System and method for non-contacting measurement of the eye |
US20050140981A1 (en) | 2002-04-18 | 2005-06-30 | Rudolf Waelti | Measurement of optical properties |
EP1582143A1 (en) | 2004-03-30 | 2005-10-05 | Kabushiki Kaisha TOPCON | Optical interferometer for imaging at several depth regions of an object |
US20060146334A1 (en) | 2002-09-18 | 2006-07-06 | Cluff Julian A | Apparatus for varying the path length of a beam of radiation |
WO2006081998A1 (en) | 2005-02-04 | 2006-08-10 | Carl Zeiss Meditec Ag | Device for determining the position of spaced-apart areas in transparent and/or diffuse objects |
US20070076217A1 (en) | 2005-10-05 | 2007-04-05 | Chris Baker | Optical coherence tomography for eye-length measurement |
WO2007065670A2 (en) | 2005-12-06 | 2007-06-14 | Carl Zeiss Meditec Ag | Interferometric sample measurement |
US7246905B2 (en) | 1998-11-13 | 2007-07-24 | Jean Benedikt | Method and an apparatus for the simultaneous determination of surface topometry and biometry of the eye |
US7370968B2 (en) * | 2006-05-29 | 2008-05-13 | Nidek Co., Ltd. | Ocular depth dimension measurement apparatus |
-
2007
- 2007-12-11 US US11/954,146 patent/US7800759B2/en active Active
-
2008
- 2008-11-13 WO PCT/US2008/083349 patent/WO2009075993A2/en active Application Filing
- 2008-11-13 EP EP08859546.7A patent/EP2223039B1/en active Active
Patent Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5347327A (en) | 1991-04-15 | 1994-09-13 | Kabushiki Kaisha Topcon | Process and apparatus for measuring axial eye length |
US5673096A (en) | 1994-12-23 | 1997-09-30 | Carl Zeiss Jena Gmbh | Interferometric arrangement with diffractive optical element for measuring intraocular distances |
US6144456A (en) | 1995-05-04 | 2000-11-07 | Haag-Streit Ag | Apparatus having a multiple angle transparent rotating element for measuring the thickness of transparent objects |
US6243191B1 (en) | 1998-02-03 | 2001-06-05 | Carl Zeiss Jena Gmbh | Optical path length modulator |
US5975699A (en) | 1998-04-29 | 1999-11-02 | Carl Zeiss, Inc. | Method and apparatus for simultaneously measuring the length and refractive error of an eye |
US6053613A (en) * | 1998-05-15 | 2000-04-25 | Carl Zeiss, Inc. | Optical coherence tomography with new interferometer |
US7246905B2 (en) | 1998-11-13 | 2007-07-24 | Jean Benedikt | Method and an apparatus for the simultaneous determination of surface topometry and biometry of the eye |
US6779891B1 (en) | 1998-12-10 | 2004-08-24 | Carl Zeiss Jena Gmbh | System and method for non-contacting measurement of the eye |
US20050140981A1 (en) | 2002-04-18 | 2005-06-30 | Rudolf Waelti | Measurement of optical properties |
US20060146334A1 (en) | 2002-09-18 | 2006-07-06 | Cluff Julian A | Apparatus for varying the path length of a beam of radiation |
EP1582143A1 (en) | 2004-03-30 | 2005-10-05 | Kabushiki Kaisha TOPCON | Optical interferometer for imaging at several depth regions of an object |
WO2006081998A1 (en) | 2005-02-04 | 2006-08-10 | Carl Zeiss Meditec Ag | Device for determining the position of spaced-apart areas in transparent and/or diffuse objects |
US20070291276A1 (en) * | 2005-02-04 | 2007-12-20 | Carl Zeiss Meditec Ag | Device for Determining the Position of Spaced-Apart Areas in Transparent and/or Diffuse Objects |
US20070076217A1 (en) | 2005-10-05 | 2007-04-05 | Chris Baker | Optical coherence tomography for eye-length measurement |
US7400410B2 (en) * | 2005-10-05 | 2008-07-15 | Carl Zeiss Meditec, Inc. | Optical coherence tomography for eye-length measurement |
WO2007065670A2 (en) | 2005-12-06 | 2007-06-14 | Carl Zeiss Meditec Ag | Interferometric sample measurement |
US20080285043A1 (en) | 2005-12-06 | 2008-11-20 | Carl Zeiss Meditec Ag | Interferometric Sample Measurement |
US7370968B2 (en) * | 2006-05-29 | 2008-05-13 | Nidek Co., Ltd. | Ocular depth dimension measurement apparatus |
Non-Patent Citations (2)
Title |
---|
Ballif et al., "Rapid and scalable scans at 21 m/s in optical low-coherence reflectometry," Optics Letters, (vol. 22), (Issue. 11), (p. 757-759), (Jun. 1, 1997). |
International Search Report (PCS/ISA/210) and Written Opinion (PCT/ISA/237) mailed on Sep. 2, 2009. |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8358421B2 (en) * | 2009-01-22 | 2013-01-22 | Canon Kabushiki Kaisha | Optical tomographic imaging apparatus that changes reference beam path lengths |
US20100182610A1 (en) * | 2009-01-22 | 2010-07-22 | Canon Kabushiki Kaisha | Optical tomographic imaging apparatus |
US9163930B2 (en) | 2009-09-22 | 2015-10-20 | Bioptigen, Inc. | Systems for extended depth frequency domain optical coherence tomography (FDOCT) and related methods |
US9867536B2 (en) * | 2009-10-23 | 2018-01-16 | Bioptigen, Inc. | Methods for comprehensive Fourier domain optical coherence tomography (FDOCT) |
US9259150B2 (en) * | 2009-10-23 | 2016-02-16 | Bioptigen, Inc. | Systems for comprehensive fourier domain optical coherence tomography (FDOCT) and related methods |
US20160166144A1 (en) * | 2009-10-23 | 2016-06-16 | Bioptigen, Inc. | Methods for Comprehensive Fourier Domain Optical Coherence Tomography (FDOCT) |
US20140160431A1 (en) * | 2009-10-23 | 2014-06-12 | Bioptigen, Inc. | Systems for Comprehensive Fourier Domain Optical Coherence Tomography (FDOCT) and Related Methods |
US20140347630A1 (en) * | 2012-01-24 | 2014-11-27 | Visia Imaging S.R.L. | Fast measurement of ocular axial length |
US20150272433A1 (en) * | 2014-04-01 | 2015-10-01 | Crystalvue Medical Corporation | Optical measuring device and method |
CN104970765A (en) * | 2014-04-01 | 2015-10-14 | 明达医学科技股份有限公司 | Optical measurement equipment and method |
US10743758B2 (en) | 2015-03-25 | 2020-08-18 | Amo Development, Llc | Multiple depth optical coherence tomography system and method and laser eye surgery system incorporating the same |
US11166630B2 (en) | 2017-01-28 | 2021-11-09 | Cylite Pty Ltd | Optical coherence metrology and tomography with improved registration |
US11730362B2 (en) | 2017-01-28 | 2023-08-22 | Cylite Pty Ltd | Optical coherence metrology and tomography with improved registration |
EP3801195A4 (en) * | 2018-06-05 | 2021-08-11 | Cylite Pty Ltd | Apparatus and method for in-vivo measurement of corneal biomechanical response |
US11963722B2 (en) | 2021-04-13 | 2024-04-23 | Amo Development, Llc | Methods and systems for determining change in eye position between successive eye measurements |
Also Published As
Publication number | Publication date |
---|---|
EP2223039B1 (en) | 2016-11-09 |
WO2009075993A3 (en) | 2009-10-22 |
EP2223039A2 (en) | 2010-09-01 |
US20090147266A1 (en) | 2009-06-11 |
WO2009075993A2 (en) | 2009-06-18 |
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